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Related papers: Geometric effects in the infinite-layer nickelates

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We elucidate the electronic structure and quantum many-body instabilities of the monolayer nickelate La2NiO4 under hydrostatic pressure using a combination of density functional theory, dynamical mean-field theory (DFT+DMFT), and random…

Strongly Correlated Electrons · Physics 2025-11-20 Shu-Hong Tang , Han-Yu Wang , Da-Yong Liu , Feng Lu , Wei-Hua Wang , H. -Q. Lin , Liang-Jian Zou

We explore the optical properties of La3Ni2O7 bilayer nickelates by using density functional theory including a Coulomb repulsion term. Convincing agreement with recent experimental ambient-pressure spectra is achieved for U=3eV, which…

In this paper we investigate the electronic and superconducting properties in nickelate compounds of NiO2 through Perturbative Density Functional Theory (P-DFT) and multi-band BCS theory. We consider three different cases of study (i) the…

Superconductivity · Physics 2021-12-16 Julian Faundez , C. A. Aguirre , S. G. Magalhães , J. Barba-Ortega

The observation of superconductivity in infinite layer nickelate (Nd,Sr)NiO$_{2}$ thin films has led to rapid theoretical and experimental investigations of these copper-oxide-analogue systems [1-15]. Superconductivity has also been found…

The structural properties of amorphous GeO$_2$, a prototypical network glass, were investigated under ambient to high pressure using reverse Monte Carlo simulations based on reported structure factors from in situ high-pressure neutron…

Materials Science · Physics 2024-09-10 Kenta Matsutani , Asumi Yamauchi , Shusuke Kasamatsu , Takeshi Usuki

The angular dependent magnetoresistance of (Per)2[Au(mnt)2] under pressure has revealed geometrical effects associated with the crystallographic parameters. Pressure suppresses the charge density wave ground state of the material, and in…

Strongly Correlated Electrons · Physics 2015-05-14 D. Graf , J. S. Brooks , E. S. Choi , M. Almeida , R. T. Henriques , J. C. Dias , S. Uji

We report a comprehensive study of magnetic correlations in LaNiO$_{2}$, a parent compound of the recently discovered family of infinite-layer (IL) nickelate superconductors, using multiple experimental and theoretical methods. Our specific…

X-ray absorption spectroscopy and resonant soft x-ray reflectivity show a non-uniform distribution of oxygen holes in a La2NiO4 - La2CuO4 (LNO-LCO) superlattice, with excess holes concentrated in the LNO layers. Weak ferromagnetism with Tc…

Strongly Correlated Electrons · Physics 2015-05-28 S. Smadici , J. C. T. Lee , J. Morales , G. Logvenov , O. Pelleg , I. Bozovic , Y. Zhu , P. Abbamonte

Using \emph{ab initio} band structure methods and DFT+dynamical mean-field theory approach we explore the possible formation of spin and charge stripes in the Ni-O plane of hole-doped infinite-layer nickelates, $R$NiO$_2$. Our results…

Strongly Correlated Electrons · Physics 2022-10-12 K. G. Slobodchikov , I. V. Leonov

We demonstrate in this paper that the recently discovered infinite-layer (IL) nickelates have much in common with a class of materials known as electrides. Oxide based electrides are compounds in which topotactic removal of loosely bound…

Superconductivity · Physics 2023-11-30 Kateryna Foyevtsova , Ilya Elfimov , George A. Sawatzky

Employing first-principles density functional theory calculations and Wannierization of the low energy band structure, we analyze the electronic structure of undoped, infinite-layer nickelate compounds, NdNiO$_2$, PrNiO$_2$ and LaNiO$_2$.…

Strongly correlated quantum solids are characterized by an inherently granular electronic fabric, with spatial patterns that can span multiple length scales in proximity to a critical point. Here, we used a resonant magnetic X-ray…

Infinite-layer nickelates are among the most promising cuprate-akin superconductors, although relevant differences from copper oxides have been reported. Here, we present momentum- and polarization-resolved RIXS measurements on chemically…

Motivated by the recent theoretical materials design of superconducting $d^9$ nickelates for which the charge transfer from the NiO$_2$ to the block layer is completely suppressed [M. Hirayama $\textit{et al.}$, Phys. Rev. B $\textbf{101}$,…

Superconductivity · Physics 2023-06-13 Motoharu Kitatani , Yusuke Nomura , Motoaki Hirayama , Ryotaro Arita

We investigate the morphological properties of large-scale structure in the Universe and the physical processes that modify the excursion-set morphology of the three-dimensional matter density field. Using the Quijote N-body simulation…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-23 Priya Goyal , Stephen Appleby , Pravabati Chingangbam , Changbom Park

The discovery of superconductivity in La3Ni2O7 has attracted significant research interest in the field of nickelate superconductors. Despite extensive studies on pristine La3Ni2O7, the impact of oxygen vacancies (VO), a common type of…

Materials Science · Physics 2024-06-07 Xuelei Sui , Xiangru Han , Xiaojun Chen , Liang Qiao , Xiaohong Shao , Bing Huang

We study the many-body electronic structure of the stoichiometric and electron-doped trilayer nickelate Pr$_4$Ni$_3$O$_8$ in comparison to that of the stoichiometric and hole-doped infinite layer nickelate NdNiO$_2$ within the framework of…

Strongly Correlated Electrons · Physics 2020-12-23 Jonathan Karp , Alexander Hampel , Manuel Zingl , Antia S. Botana , Hyowon Park , Michael R. Norman , Andrew J. Millis

Can we change the shape of a domain without altering its sizes? By introducing a size-invariant shape transformation, we propose the existence and explore the consequences of a new type of physical effect appearing at the quantum scales,…

Mesoscale and Nanoscale Physics · Physics 2021-02-09 Alhun Aydin

While defects such as oxygen vacancies in correlated materials can modify their electronic properties dramatically, understanding the microscopic origin of electronic correlations in materials with defects has been elusive. Lanthanum…

Strongly Correlated Electrons · Physics 2021-02-24 Xingyu Liao , Vijay Singh , Hyowon Park

The recent discovery of the superconductivity in the doped infinite layer nickelates $R$NiO$_2$ ($R$=La, Pr, Nd) is of great interest since the nickelates are isostructural to doped (Ca,Sr)CuO$_2$ having superconducting transition…

Superconductivity · Physics 2022-04-06 Yusuke Nomura , Ryotaro Arita
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